http://blogs.mathworks.com/desktop/2009/01/12/how-to-be-top-mathematician/ Ken & Mike work on the MATLAB Desktop team Mon, 23 Nov 2009 00:02:28 +0000 http://wordpress.org/?v=2.3.1 http://blogs.mathworks.com/desktop/2009/01/12/how-to-be-top-mathematician/#comment-6058 wei Sun, 18 Jan 2009 20:03:58 +0000 http://blogs.mathworks.com/desktop/2009/01/12/how-to-be-top-mathematician/#comment-6058 Hi Mike, Consider that Cleve's article was written 12 yeears ago. Consider the alternstive, symbolic math, exists. How could Matlab provide better and seemless support, particularly when data is exchanged among tools, in dealing with this? Hi Mike,
Consider that Cleve’s article was written 12 yeears ago. Consider the alternstive, symbolic math, exists. How could Matlab provide better and seemless support, particularly when data is exchanged among tools, in dealing with this?

]]> http://blogs.mathworks.com/desktop/2009/01/12/how-to-be-top-mathematician/#comment-6057 Aurélien Queffurust Fri, 16 Jan 2009 08:33:09 +0000 http://blogs.mathworks.com/desktop/2009/01/12/how-to-be-top-mathematician/#comment-6057 Nice demo, Mike! It always makes me smile to think that MATLAB is a powerful tool which does not return zero when computing 0.3-0.2-0.1! Although I know the scientific reasons , I always found that it is not so easy to explain the round-off errors: I mean I can tell my grand-mother that I am working with a wonderful software used in worldwide applications but simple operations like 0.3-0.2-0.1 will never return zero... Now it is hard to tell my grand-mother that it is the expected behavior and if she doesn't believe me she can always read the tech note 1108 or the different articles of Cleve Moler ! Fortunaly these resources exist and most of the time , let's say even 100% of MATLAB users trust in articles written by Cleve. Nice demo, Mike!
It always makes me smile to think that MATLAB is a powerful tool which does not return zero when computing 0.3-0.2-0.1!
Although I know the scientific reasons , I always found that it is not so easy to explain the round-off errors:
I mean I can tell my grand-mother that I am working with a wonderful software used in worldwide applications but simple operations like 0.3-0.2-0.1 will never return zero…
Now it is hard to tell my grand-mother that it is the expected behavior and if she doesn’t believe me
she can always read the tech note 1108 or the different articles of Cleve Moler !
Fortunaly these resources exist and most of the time , let’s say even 100% of MATLAB users trust in articles written by Cleve.

]]>